Backend Engineer - Premium Billing Platform

About the role

Wix is hiring a backend-oriented engineer for its Premium Billing team in Tel Aviv. You will help build and enhance the platform that powers subscriptions, billing and payment flows across Wix products, working on a flexible, API-first system that supports many products, business models, pricing structures and payment providers. The team is also modernising existing billing flows and migrating large-scale production traffic and subscriptions to the new platform.

Key responsibilities

• Design and build backend services for subscriptions, billing, checkout and payment execution at scale
• Develop API-first domain models for subscriptions, orders, invoices, payment intents and payment methods
• Create resilient distributed flows using asynchronous processing, idempotency, retries and failure-recovery mechanisms
• Design systems that work across multiple payment providers while keeping the platform agnostic
• Improve production reliability and observability using metrics, logs, traces and data-driven insights
• Collaborate with Product, Payments, Data, Finance and other teams to deliver end-to-end solutions

Required profile

• 4+ years of experience building backend systems in production
• Strong software engineering fundamentals and hands-on experience designing complex backend systems
• Proven experience designing systems for reliability, scalability, consistency and failure recovery
• Ability to troubleshoot complex production issues across multiple services and data sources
• Strong ownership mindset, taking responsibility for critical systems from design to production

Required skills

• Distributed systems and microservices architectures
• API design, domain modeling, Object-Oriented Programming and SOLID principles
• Asynchronous and event-driven architectures
• Automated testing, clean code and maintainable software design
• Curiosity and practical use of modern AI-assisted engineering tools

An advantage: experience with billing, subscriptions, fintech or payments; familiarity with payment providers such as Stripe, Adyen, Braintree or PayPal; knowledge of event-driven systems, workflow orchestration or distributed transactions; hands-on experience with large-scale data and observability platforms.

The work model is fully in person, five days a week from the office, with flexibility handled at the team level.